//** Tab Content script- © Dynamic Drive DHTML code library (http://www.dynamicdrive.com)
//** Last updated: Nov 8th, 06

var enabletabpersistence=0 //enable tab persistence via session only cookies, so selected tab is remembered?

////NO NEED TO EDIT BELOW////////////////////////
var tabcontentIDs=new Object()

function expandcontent(linkobj)
{
	
	var ulid=linkobj.parentNode.parentNode.id //id of UL element
	//alert(ulid);
	var ullist=document.getElementById(ulid).getElementsByTagName("li") //get list of LIs corresponding to the tab contents
	for (var i=0; i<ullist.length; i++)
	{
		ullist[i].className=""  //deselect all tabs
		if (typeof tabcontentIDs[ulid][i]!="undefined") //if tab content within this array index exists (exception: More tabs than there are tab contents)
		{	
			document.getElementById(tabcontentIDs[ulid][i]).style.display="none"; //hide all tab contents
			//alert(tabcontentIDs[ulid][i]);
			//z = i + 1
			//alert("tdestcontent" + i);
			//document.getElementById("tdestcontent" + z).style.display="none" //hide all tab contents
		}
	}
	if (ulid == "maintab")
	{
		var u = ullist.length + 1;
		for (var z = 1; z < u; z++)
			document.getElementById("tdestcontent" + z).style.display="none";
	}
	linkobj.parentNode.className="selected";  //highlight currently clicked on tab
	document.getElementById(linkobj.getAttribute("rel")).style.display="block"; //expand corresponding tab content
	if (ulid == "maintab")
		document.getElementById(linkobj.getAttribute("rel2")).style.display="block";
	saveselectedtabcontentid(ulid, linkobj.getAttribute("rel"))
}

function expandtab(tabcontentid, tabnumber){ //interface for selecting a tab (plus expand corresponding content)
var thetab=document.getElementById(tabcontentid).getElementsByTagName("a")[tabnumber]
if (thetab.getAttribute("rel"))
expandcontent(thetab)
}

function savetabcontentids(ulid, relattribute){// save ids of tab content divs
if (typeof tabcontentIDs[ulid]=="undefined") //if this array doesn't exist yet
tabcontentIDs[ulid]=new Array()
tabcontentIDs[ulid][tabcontentIDs[ulid].length]=relattribute
}

function saveselectedtabcontentid(ulid, selectedtabid){ //set id of clicked on tab as selected tab id & enter into cookie
if (enabletabpersistence==1) //if persistence feature turned on
setCookie(ulid, selectedtabid)
}

function getullistlinkbyId(ulid, tabcontentid){ //returns a tab link based on the ID of the associated tab content
var ullist=document.getElementById(ulid).getElementsByTagName("li")
for (var i=0; i<ullist.length; i++){
if (ullist[i].getElementsByTagName("a")[0].getAttribute("rel")==tabcontentid){
return ullist[i].getElementsByTagName("a")[0]
break
}
}
}

function initializetabcontent()
{
	
	for (var i=0; i<arguments.length; i++)
	{ //loop through passed UL ids
		//if (enabletabpersistence==0 && getCookie(arguments[i])!="") //clean up cookie if persist=off
		//	setCookie(arguments[i], "")
		
		var clickedontab="";//getCookie(arguments[i]) //retrieve ID of last clicked on tab from cookie, if any
		var ulobj=document.getElementById(arguments[i])
		var ulist=ulobj.getElementsByTagName("li") //array containing the LI elements within UL
	
		for (var x=0; x<ulist.length; x++)
		{ //loop through each LI element
			var ulistlink=ulist[x].getElementsByTagName("a")[0]
			if (ulistlink.getAttribute("rel"))
			{
				savetabcontentids(arguments[i], ulistlink.getAttribute("rel")) //save id of each tab content as loop runs
				ulistlink.onclick=function()
				{
					expandcontent(this)
					return false
				}
				if (ulist[x].className=="selected" && clickedontab=="") //if a tab is set to be selected by default
					expandcontent(ulistlink) //auto load currenly selected tab content
			}
		} //end inner for loop
		//if (clickedontab!="")
		//{ //if a tab has been previously clicked on per the cookie value
		//	var culistlink=getullistlinkbyId(arguments[i], clickedontab)
		//	if (typeof culistlink!="undefined") //if match found between tabcontent id and rel attribute value
		//		expandcontent(culistlink) //auto load currenly selected tab content
		//	else //else if no match found between tabcontent id and rel attribute value (cookie mis-association)
		//		expandcontent(ulist[0].getElementsByTagName("a")[0]) //just auto load first tab instead
		//}
	} //end outer for loop
}


function getCookie(Name){ 
var re=new RegExp(Name+"=[^;]+", "i"); //construct RE to search for target name/value pair
if (document.cookie.match(re)) //if cookie found
return document.cookie.match(re)[0].split("=")[1] //return its value
return ""
}

function setCookie(name, value){
document.cookie = name+"="+value //cookie value is domain wide (path=/)
}